scholarly journals Spatial distribution and driving factors determining local food and feed self‐sufficiency in the eastern regions of China

2021 ◽  
Author(s):  
Yang Li ◽  
Zhigang Sun ◽  
Francesco Accatino
Keyword(s):  
Spatial Distribution ◽  
Local Food ◽  
Driving Factors ◽  
Self Sufficiency ◽  
Food And Feed

scholarly journals Unbalanced Development Characteristics and Driving Mechanisms of Regional Urban Spatial form: A Case Study of Jiangsu Province, China

2021 ◽  
Vol 13 (6) ◽  
pp. 3121
Author(s):  
Guoping Xiong ◽  
Xin Cao ◽  
Nicholas A. S. Hamm ◽  
Tao Lin ◽  
Guoqin Zhang ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Regional Development ◽  
Driving Factors ◽  
Spatial Expansion ◽  
Spatial Form ◽  
Coordinated Development ◽  
Urbanization Level ◽  
Driving Mechanisms ◽  
Urbanization Development ◽  
Southern Jiangsu

Unbalanced regional development is widespread, and the imbalance of regional development in developing countries with rapid urbanization is increasingly apparent. This threatens the sustainable development of the region. Promoting the coordinated development of the region has become a hot spot of scientific research and a major practical need. Taking 99 counties of Jiangsu Province China, a typical coastal plain region, as the basic research unit, this paper explores the unbalanced development characteristics of the regional urban spatial form using three indicators: urban spatial expansion size, development intensity, and distribution aggregation degree. Then, their driving mechanisms were evaluated using spatial autocorrelation analysis, Pearson correlation analysis, linear regression, and geographically weighted regression. Our results found that the areas with larger urban spatial expansion size and development intensity were mainly concentrated in southern Jiangsu, where there was a positive spatial correlation between them. We found no agglomeration phenomenon in urban spatial distribution aggregation degree. From the perspective of driving factors: economics was the main driving factor of urban spatial expansion size; urbanization level and urbanization quality were the main driving factors of urban spatial development intensity. Natural landform and urbanization level are the main driving factors of urban spatial distribution aggregation degree. Finally, we discussed the optimization strategy of regional coordinated development. The quality of urbanization development and regional integration should be promoted in Southern Jiangsu. The level of urbanization development should be improved relying on rapid transportation to develop along the axis in central Jiangsu. The economic size should be increased, focusing on the expansion of the urban agglomeration in northern Jiangsu. This study will enrich the perspective of research on the characteristics and mechanisms of regional urban spatial imbalance, and helps to optimize and regulate the imbalance of regional urban development from multiple perspectives.

scholarly journals Does eating local food reduce the environmental impact of food production and enhance consumer health?

2010 ◽  
Vol 69 (4) ◽  
pp. 582-591 ◽  
Author(s):  
Gareth Edwards-Jones
Keyword(s):  
Food System ◽  
Local Food ◽  
Local Level ◽  
Qualitative Assessment ◽  
Small Scale ◽  
Quantitative Evidence ◽  
Self Sufficiency ◽  
Non Local ◽  
The Uk ◽  
The Impact

The concept of local food has gained traction in the media, engaged consumers and offered farmers a new marketing tool. Positive claims about the benefits of local food are probably not harmful when made by small-scale producers at the local level; however, greater concern would arise should such claims be echoed in policy circles. This review examines the evidence base supporting claims about the environmental and health benefits of local food. The results do not offer any support for claims that local food is universally superior to non-local food in terms of its impact on the climate or the health of consumers. Indeed several examples are presented that demonstrate that local food can on occasions be inferior to non-local food. The analysis also considers the impact on greenhouse gas emissions of moving the UK towards self-sufficiency. Quantitative evidence is absent on the changes in overall emissions that would occur if the UK switched to self-sufficiency. A qualitative assessment suggests the emissions per item of food would probably be greater under a scenario of self-sufficiency than under the current food system. The review does not identify any generalisable or systematic benefits to the environment or human health that arise from the consumption of local food in preference to non-local food.

Food Security in Hawai‘i

2016 ◽  
Author(s):  
George Kent
Keyword(s):  
Food Security ◽  
Food Insecurity ◽  
State Government ◽  
Low Income ◽  
Food Production ◽  
Local Food ◽  
The State ◽  
The Poor ◽  
Self Sufficiency ◽  
Low Income Consumers

This chapter challenges the uncritical pursuit of food self-sufficiency that has been rationalized as increasing the state’s preparedness against shipping disruption. It argues that this effort might increase food’s cost, and reiterates the point that local food is not necessarily fair as low-income consumers could be sidelined in the push for food localization. In contrast to the enthusiasm for promoting agriculture and local food production in the state, relatively little has been done in addressing food insecurity of the poor, especially by the state government. Food democracy needs to consider food security for all—particularly the poor and the marginalized.

scholarly journals Regional food and feed self-sufficiency related to climate change and animal density – a case study from the Czech Republic

2019 ◽  
Vol 65 (No. 5) ◽  
pp. 244-252
Author(s):  
Josef Pulkrábek ◽  
Lukáš Pacek ◽  
Jaroslav Čítek ◽  
Roman Stupka ◽  
Kateřina Pračke ◽  
...  
Keyword(s):  
Czech Republic ◽  
Crop Production ◽  
Arable Land ◽  
Climate Impacts ◽  
Biomass Energy ◽  
Baseline Scenario ◽  
The Czech Republic ◽  
Yield Decline ◽  
Self Sufficiency ◽  
Food And Feed

A new food and feed self-sufficiency model for the Czech Republic (RESTEP) was applied for the evaluation of possible adverse climate impacts uniformly reducing crop production by 5, 10, 20, and 30%. The situation was simulated for the whole country and four different agriculturally important regions. Biomass production modeling confirmed that for the whole country, the food self-sufficiency is secured up to 20% of yield decline for most crops, but even 5% yield decline of silage maize would lead to its shortage in animal feeding. On the other hand, regional results vary significantly. Regions Jižní Morava and Střední Čechy shown oversupply of feedstuff allowing them to cover the demands of cattle and pigs up to 20% or 30% decline of yield, respectively. The opposite model represents the Vysočina (VY) region which is not able to cover the demands from own sources even at the baseline scenario. The acreage extension of maize is not possible due to erosion risk restrictions at 25% of arable land at VY. The possible solution consists of extension acreage of alfalfa and clover or finding other plants sufficient for feeding as well for biogas facilities in regions rich in biomass energy consumers.

A study on the spatial distribution of the renewable energy industries in China and their driving factors

2019 ◽  
Vol 139 ◽  
pp. 161-175 ◽  
Author(s):  
Qiang Wang ◽  
Mei-Po Kwan ◽  
Jie Fan ◽  
Kan Zhou ◽  
Ya-Fei Wang
Keyword(s):  
Spatial Distribution ◽  
Renewable Energy ◽  
Driving Factors

scholarly journals The Utilization of Rapeseed for Biofuels Production in the EU

2013 ◽  
Vol 2 (1) ◽  
pp. 11-14 ◽  
Author(s):  
Iveta Zentková ◽  
Eva Cvengrošová
Keyword(s):  
First Generation ◽  
Raw Materials ◽  
Green Energy ◽  
Transport Sector ◽  
Feed Production ◽  
Self Sufficiency ◽  
Food And Feed ◽  
Rapeseed Production ◽  
National Governments ◽  
The Eu

Abstract Biofuels production has risen rapidly in the past decade. Growing tendency can be expected in the future if national governments will continue in achievement of higher share of ‘green energy’. Diversification and self-sufficiency in energy and environmental aspects should underpin national and international policy. Consumption of biofuels in the transport sector has been significantly increasing since 2000. Biofuels produced in the EU are mostly first-generation biofuels, mainly produced from agricultural raw materials. The aim of the article is utilization assessment of the main agriculture crop used in biofuels production in the EU, which is rapeseed. For achievement of the research objective have been used analysis methods, basic statistical indices, the share of rapeseed production used in industrial purposes estimation and self - sufficiency index. The results of the research confirm authors’ expectations concerning shifting of agricultural production primarily intended for food and feed production to industrial purposes due to continually growing demand for biofuels.

scholarly journals SPATIAL AND TEMPORAL CHANGES OF AEROSOL OPTICAL DEPTH AND ITS DRIVING FACTORS BASED ON MODIS IN JIANGSU PROVINCE

2018 ◽  
Vol XLII-3 ◽  
pp. 645-649
Author(s):  
C. Jiang ◽  
Q. Xu ◽  
Y. K. Gu ◽  
X. Y. Qian ◽  
J. N. He
Keyword(s):  
Spatial Distribution ◽  
Aerosol Optical Depth ◽  
Optical Depth ◽  
Temporal Changes ◽  
Jiangsu Province ◽  
Driving Factors ◽  
Air Mass ◽  
Spatial And Temporal Changes ◽  
Clear Point ◽  
Precipitation And Temperature

Aerosol Optical Depth (AOD) is of great value for studying air mass and its changes. In this paper, we studied the spatial-temporal changes of AOD and its driving factors based on spatial autocorrelation model, gravity model and multiple regression analysis in Jiangsu Province from 2007 to 2016. The results showed that in terms of spatial distribution, the southern AOD value is higher, and the high-value aggregation areas are significant, while the northern AOD value is lower, but the low-value aggregation areas constantly change. The AOD gravity centers showed a clear point-like aggregation. In terms of temporal changes, the overall AOD in Jiangsu Province increased year by year in fluctuation. In terms of driving factors, the total amount of vehicles, precipitation and temperature are important factors for the growth of AOD.

scholarly journals Cultivated Land Change, Driving Forces and Its Impact on Landscape Pattern Changes in the Dongting Lake Basin

2020 ◽  
Vol 17 (21) ◽  
pp. 7988
Author(s):  
Junhan Li ◽  
Kaichun Zhou ◽  
Huimin Dong ◽  
Binggeng Xie
Keyword(s):  
Land Use ◽  
Spatial Distribution ◽  
Landscape Pattern ◽  
Dongting Lake ◽  
Driving Factors ◽  
Lake Basin ◽  
Cultivated Land ◽  
Land Resources ◽  
Change Characteristics ◽  
Pattern Index

Comprehending the dynamic change characteristics of land use/cover and the driving factors causing the change are prerequisites for protecting land resources. This paper analyzes changes in cultivated land, the driving factors that cause them, and their tremendous impact on landscape pattern changes in the Dongting Lake Basin. For this purpose, we used mathematical statistics, buffer analysis, trend analysis, landscape pattern index, and logistic regression model to analyze the land use data of the study area from 1980 to 2018. The results show that the cultivated land showed a decreasing trend, with the total area decreased by 4.76% (or 716.13 km2) from 1980 to 2018, and the activity of mutual transformation with other land use types decreased. The spatial distribution pattern of cultivated land and landscape shows the change characteristics gradually from Dongting Lake to the surroundings. Among the driving factors of cultivated land changes, the influence of human activities was gradually increasing, while the natural factors were decreasing. The cultivated land landscape pattern index and the overall landscape pattern index have a significant positive correlation, showing relatively consistent change trend and spatial distribution characteristics. We believe that the decrease of cultivated land area has a certain relationship with the increase of landscape fragmentation in the Dongting Lake Basin. Our research is expected to provide a reference for strengthening regional cultivated land management and rational development and utilization of regional land resources.

Spatial distribution characteristics of pedodiversity and its major driving factors in China based on analysis units of different sizes

CATENA ◽  
2021 ◽  
Vol 207 ◽  
pp. 105701
Author(s):  
Mengyu Luo ◽  
Tianwei Wang ◽  
Zhenyuan Li ◽  
Tieyang Zhang ◽  
Jiawei Yang ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Driving Factors ◽  
Distribution Characteristics ◽  
Spatial Distribution Characteristics
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